Patents by Inventor Sidney Dunbar

Sidney Dunbar has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Shaping means for the production of fiber-reinforced preform articles
    Patent number: 4961700
    Abstract: A shaping apparatus for the production of fiber reinforced articles is disclosed. The shaping means includes a first screen having a surface defining the contoured shape of the article; a second screen having a complementary surface defining the reverse contoured shape of the article; and, at least one resilient presser rod operatively attached to the first screen or the second screen. The presser rod engages the fiber matting and presses the fiber matting into either a portion of the first screen or the second screen as the screens are closed together. The shaping apparatus is particularly suitable for the manufacture of glass fiber-reinforced automobile bumpers.
    Type: Grant
    Filed: August 10, 1989
    Date of Patent: October 9, 1990
    Assignee: Owens-Corning Fiberglas Corporation
    Inventor: Sidney Dunbar